<template>
  <div>
    <h2>hello App</h2>
    <p>
      this is for App
      {{ count }}
      <button @click="add">+</button>
    </p>
  </div>
</template>
<script>
// export default new Vue({})
export default {
  data() {
    return {
      count: 100
    };
  },
  computed: {},
  watch: {},
  methods: {
    add() {
      this.count++;
    }
  },
  created() { },
  mounted() { }
};
</script>
<style>
h2 {
  color: red;
}
</style>